In Croatia, Kajzer families are generally Croats (from Djakovo area ), very rarely Serbs, and barely Jews (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Virovitica.
Prevalence
About 70 people with faimily name Kajzer live in Croatia today, in 30 households. There were 130 of them in the middle of the past century, and their number halved. They are located and 10 other Croatian places, mostly in Zagreb (20), Slatina (10), Starogradacki Marof in Djurdjevac area (<10), Vuka in Djakovo area (<5), and in Djakovo (<5).